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From: "chfast at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/107434] New: Wrong -Wmissing-field-initializers for C++
 designated initializers
Date: Thu, 27 Oct 2022 12:08:28 +0000
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X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 13.0
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: chfast at gmail dot com
X-Bugzilla-Status: UNCONFIRMED
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X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107434

            Bug ID: 107434
           Summary: Wrong -Wmissing-field-initializers for C++ designated
                    initializers
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: chfast at gmail dot com
  Target Milestone: ---

If a struct S has a field c of type C having user constructor the
"missing-field-initializers" is reported for this field even though designa=
ted
initializers are used.

struct C
{
    int x =3D 0;
};

struct S
{
    C c;
    bool flag =3D false;

};

S test()
{
    return {.flag =3D true};
}

<source>: In function 'S test()':
<source>:15:25: warning: missing initializer for member 'S::c'
[-Wmissing-field-initializers]
   15 |     return {.flag =3D true};
      |                         ^

https://godbolt.org/z/sxc8PP7Pq=